Theory of machines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Theory of machines, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Theory of machines MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Theory of machines mcq questions that explore various aspects of Theory of machines problems. Each MCQ is crafted to challenge your understanding of Theory of machines principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Theory of machines MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Theory of machines. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Theory of machines knowledge to the test? Let's get started with our carefully curated MCQs!

Theory of machines MCQs | Page 23 of 48

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Q221.
When a body is subjected to transverse vibrations, the stress induced in a body will be

a.

shear stress

b.

bending stress

c.

tensile stress

d.

compressive, stress

Discuss
Answer: (b).bending stress
Q222.
The magnitude of linear velocity of a point B on a link AB relative to point A is (where ฯ‰ = Angular velocity of the link AB)

a.

ฯ‰ x AB

b.

ฯ‰ (AB)2

c.

ฯ‰² x AB

d.

(ฯ‰ x AB)2

Discuss
Answer: (a).ฯ‰ x AB
Q223.
A slender shaft supported on two bearings at its ends carries a disc with an eccentricity e from the axis of rotation. The critical speed of the shaft is Nc. If the disc is replaced by a second one of same mass but mounted with an eccentricily 2 e, then the critical speed of the shaft in the second case is

a.

Nc/2

b.

Nc/2

c.

Nc

d.

2 Nc

Discuss
Answer: (b).Nc/2
Q224.
The mechanism in which two are turning pairs and two are sliding pairs, is called a

a.

double slider crank chain

b.

elliptical trammel

c.

Scotch yoke mechanism

d.

all of these

Discuss
Answer: (d).all of these
Q225.
In a multiple V-belt drive, all the belts should stretch at the same rate.

a.

Agree

b.

Disagree

c.

Can't say

d.

None of these

Discuss
Answer: (a).Agree
Q226.
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

a.

one-half

b.

two-third

c.

three-fourth

d.

whole

Discuss
Answer: (b).two-third
Q227.
The cam follower generally used in air-craft engines is

a.

knife edge follower

b.

flat faced follower

c.

spherical faced follower

d.

roller follower

Discuss
Answer: (d).roller follower
Q228.
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

a.

tractive force

b.

swaying couple

c.

hammer blow

d.

none of these

Discuss
Answer: (c).hammer blow
Q229.
If ฯ‰/ฯ‰n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

a.

0°

b.

90°

c.

180°

d.

360°

Discuss
Answer: (a).0°
Q230.
The factional torque for square thread at the mean radius r while raising load W is given by

a.

T = W.r tan(ฯ† - ฮฑ)

b.

T = W.r tan(ฯ† + ฮฑ)

c.

T = W.r tan ฮฑ

d.

T = W.r tan ฯ†

Discuss
Answer: (b).T = W.r tan(ฯ† + ฮฑ)
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